CN113560401B - Stamping die and stamping method for a trough cable bridge cover plate - Google Patents

Abstract

The present invention provides a stamping die for a trough-type cable bridge cover plate and a stamping method thereof, including a supporting mechanism, a bending mechanism, an actuator, and a bottom plate. The present invention solves the problem of material jamming due to the bending of both sides of the cover plate due to internal stress and outward expansion and rebound, resulting in difficulty in picking up the cover plate and increasing labor intensity; the forming mold can only be used for extrusion molding of one type of raw material plate, and the corresponding forming mold needs to be replaced when extruding raw material plates of different widths, lengths or thicknesses. The production efficiency of the factory is reduced, and the production cost of the cover plate is increased; the raw material plate cannot be accurately positioned during the extrusion molding process, resulting in positional deviation, which will cause the size deviation of the cable tray cover plate after forming, which cannot meet the actual use requirements; the raw material plate is easy to cause surface scratches during the extrusion molding process, which reduces the molding quality of the cover plate and other problems.

Description

Stamping die and stamping method for a trough cable bridge cover plate

technical field

The invention relates to the technical field of stamping and forming of cable bridge cover plates, in particular to a punching forming mold and a stamping method for a trough type cable bridge cover plate.

Background technique

Trough-type cable tray is a trough-shaped component bent from a whole steel plate. The conceptual difference between it and the tray frame is that the ratio of height to width is different. The tray tray is shallow and wide, and the slot-type cable tray has a certain depth and closure. The trough type cable tray is a fully enclosed cable tray, which is most suitable for laying computer cables, communication cables, thermocouple cables and other control cables for high-sensitivity systems. It has good effects on the shielding of control cables and the protection of cables in heavy corrosion environments.

The trough bridge will be equipped with accessories such as cover plates during installation, which can improve the rigidity of the cable bridge. The cover plate is pressed by steel plate with folds on both sides. The cover plate is mainly to better protect the cable tray, prevent the cables inside the cable tray from being damaged by excess, and increase the service life of the cable and cable tray; while the cover plate of the trough cable tray is in the production process, most of them are manually placed on the surface of the forming mold, and then extruded.

Nowadays, the following problems exist in the molding process of the trough cable tray cover plate: 1. The internal stress of the formed cover plate expands and rebounds outward due to the bending of the two sides, which will cause material jams, which will make it difficult to take the cover plate and increase the labor intensity of labor; 2. The forming mold can only be extruded for one type of raw material. In the extrusion molding process, accurate positioning is not possible, which is easy to cause deviation, resulting in positional deviation, which will cause the dimension deviation of the formed cable bridge cover plate, which cannot meet the actual use requirements; 4. The raw material sheet is easy to cause surface scratches during the extrusion forming process, which reduces the forming quality of the cover plate; for this reason, the present invention provides a stamping mold for the trough type cable bridge cover plate and its stamping method.

Contents of the invention

In order to achieve the above object, the present invention adopts the following technical solutions, a trough type cable bridge cover stamping forming die, including a material supporting mechanism, a bending mechanism, an actuator and a base plate, the actuator is installed on the base plate, a bending mechanism is arranged directly below the actuator, the bending mechanism is symmetrically installed on the base plate through a sliding fit, a material supporting mechanism is arranged between the bending mechanisms, the material supporting mechanism is installed on the base plate, and the material supporting mechanism is connected to the bending mechanism through a movable connection mode, wherein:

The supporting mechanism includes an H-shaped bracket, a leading screw, a handwheel, a linkage carriage, a slide bar, a compression spring, a main supporting plate and a positioning unit; the H-shape bracket is installed on the base plate, and the left end of the H-shape bracket is provided with a screw through a thread fit mode, and a handwheel is installed on one side of the shaft of the leading screw. The H-shaped bracket is connected to each other with the bending mechanism. The H-shaped bracket is provided with a plurality of slide bars arranged linearly along its length through a sliding fit. According to the size requirements of the forming width, adjust the width spacing of the stamping forming. Rotate the screw one by the hand wheel to make the screw one rotate to control the sliding translation of the linkage carriage on the H-shaped bracket, and push the bending mechanism through the inclined waist holes symmetrically distributed at both ends of the linkage carriage, so that the bending mechanism moves outward synchronously according to the deflection guide track of the inclined waist hole, and completes the adjustment of the width spacing of the stamping forming. At the stamping position of the main support plate, the actuator is lowered and pushed to push the bending mechanism, so that the bending mechanism and the main support plate are synchronously lowered, so that the two sides of the raw material plate are in conflict with the bending mechanism, and then the two sides of the raw material plate are bent upwards to form the cover plate, and the slide bar guides the vertical descending track of the main support plate to prevent deflection.

Preferably, the positioning unit includes a T-shaped screw and a positioning sleeve; the T-shaped screw is installed on the main supporting plate through a sliding fit, and a positioning sleeve is arranged on the T-shaped screw through a threaded fit, and the bottom wall of the positioning sleeve is in contact with the end surface of the main supporting plate; according to the size and length of the raw material, the distance between the positioning is adjusted so that the raw material can be accurately and stably placed on the stamping position of the main supporting plate. The T-shaped screw can be freely slid and adjusted on the main support plate. After the adjustment of the positioning length of the raw material plate is completed, the positioning sleeve is manually rotated to make the positioning sleeve descend along the thread guide track of the T-shaped screw.

Preferably, the bending mechanism includes an upright bracket, a long frame, a pulley, a stop plate, a secondary supporting plate and a limiting unit; the upright bracket is installed on the bottom plate by a sliding fit, the upper edge of the inner wall of the upright bracket is rounded, and a long frame is symmetrically installed on the inner wall of the upright bracket, and pulleys are installed on the long frame through bearings, and the pulleys are connected to the supporting mechanism by rolling. On the top, there is an auxiliary support plate located directly above the fixed plate, which is installed on the inner wall of the upright bracket by sliding fit. The auxiliary support plate is provided with grooves, and the auxiliary support plate is connected with the support mechanism through a concave-convex fit. The inclined guide track of the inclined waist hole is offset to the outside synchronously, which can reduce the frictional resistance during adjustment, and synchronously link the upright bracket to translate to the outside, so as to complete the adjustment of the stamping width, and then adjust the positioning width according to the width of the raw material. The synchronous lifting action with the auxiliary supporting plate, the main supporting plate and the auxiliary supporting plate are used to support the raw material plate, and then the L-shaped pressure plate is pressed to push the auxiliary supporting plate, so that the main supporting plate and the auxiliary supporting plate are lowered synchronously, so that both sides of the raw material plate and the inner wall of the upright support are in conflict, and then the two sides of the raw material plate are bent upwards, so that the cover plate is stamped and formed. The surface of the raw material sheet is scratched during bending and forming, which can effectively improve the forming quality of the raw material sheet.

Preferably, the limiting unit includes a side bar and an embossed knob; the side bar is installed on the end surface of the upright bracket through a sliding fit, and an embossed knob is symmetrically arranged on the side bar through a thread fit method, and the bottom wall of the embossed knob is in contact with the end face of the upright bracket; then, according to the width of the raw material, the positioning width interval is adjusted, and the embossed knob is manually rotated to rise, so that the side bar can be freely translated and adjusted. Rotate the embossed knob to lower, so that the bottom wall of the embossed knob is in contact with the end face of the upright bracket to realize positioning self-locking, and then use the side lever to precisely position the stamping position of the raw material sheet, which can meet the positioning requirements of raw material sheets of different widths, and the rounded corners of the upper end of the side lever can prevent the surface of the raw material sheet from being scratched, and then guide the positioning of the raw material sheet through the inclined end surface of the side lever, so that the raw sheet can slide down to the stamping position according to its own weight, which facilitates the positioning of the raw material sheet .

Preferably, the executive mechanism includes an L-shaped vertical plate frame, an executive cylinder, a flat carriage, a straight rod, a lead screw two, a hand wheel two, and an L-shaped pressing plate; the L-shaped vertical plate frame is installed on the base plate, and the L-shaped vertical plate frame is equipped with an execution cylinder through a cylinder seat, and the output shaft of the execution cylinder is connected to the upper end surface of the flat carriage through a joint joint. The flat carriage is installed on the L-shaped vertical carriage by sliding fit. Lead screw 2, lead screw 2 is installed on the inner wall of the flat carriage through bearings, and handwheel 2 is installed on one side of the lead screw 2, and the lead screw 2 is connected with the L-shaped pressure plate through thread fit, and the L-shaped pressure plate is symmetrically installed on the bottom wall of the flat carriage through a sliding fit; the edge of the lower end of the outer wall of the L-shaped pressure plate is set with rounded corners; according to the size requirements of the forming width of the cable bridge cover plate, the width of the stamping is adjusted. Controlling the adjustment of the L-shaped pressing plate can meet the forming requirements of the cable bridge cover plate with different widths and sizes, and adjust the position of the L-shaped pressing plate synchronously according to the thickness of the raw material plate, so that the outer wall of the L-shaped pressing plate and the inner wall of the upright bracket are separated by a material thickness dimension, which can meet the bending and forming requirements of raw materials with different thicknesses. When the raw material sheet is combined, the surface damage is caused, which can improve the forming quality of the raw material sheet.

Preferably, both ends of the linkage carriage are provided with symmetrically distributed inclined waist holes, and the distance between the inclined waist holes gradually decreases from left to right, and the inclined waist holes at both ends of the linkage carriage have the same direction, so that the bending mechanism can be moved and adjusted synchronously according to the inclined guide track of the inclined waist holes, so as to meet the stamping and forming requirements of cable tray cover plates of different widths and sizes.

Preferably, the upper end of the positioning sleeve is set in a spherical shape, which is convenient for positioning and contacting the raw material sheet and preventing damage to the surface of the raw material sheet.

Preferably, the upper end surface of the side position rod is inclined, which facilitates the positioning and placement of the guiding raw material sheet, so that the raw material sheet can slide down to the punching position according to its own weight.

In addition, the present invention also provides a stamping method for the cover plate of the trough type cable tray, which specifically includes the following steps:

S1. Preparation of stamping raw material sheet: Use a sheet material shearing device to cut the raw material sheet of the trough cable bridge cover plate, so that the stamped raw material sheet is cut into a specified size to meet the forming requirements of the cover plate;

S2. Positioning and placement: the staff will send the raw material sheet cut into a specified size to the supporting mechanism, so that the raw material sheet can be positioned and placed;

S3. Down-pressing forming: The supporting mechanism and the executing mechanism are lowered synchronously through the lowering of the actuator and pressing the supporting mechanism, and the two sides of the raw material sheet in the supporting mechanism are resisted by the bending mechanism, and then both sides of the raw sheet are bent upward to form the cover plate;

S4. Lifting material pick-up: through the rising of the actuator, the supporting mechanism is raised synchronously, and the bent and formed cover plate is ejected upwards, and the forming size and appearance of the cover plate are inspected by the on-site staff, and the acceptance record is made, and then the cover plate is transported to the designated storage place and waits for subsequent processing.

The beneficial effects of the present invention are:

1. The present invention pushes the pulleys through the symmetrically distributed inclined waist holes at both ends of the linkage carriage, so that the pulleys are synchronously shifted outward along the inclined guide track of the inclined waist holes by rolling, which can reduce the frictional resistance during adjustment, and synchronously link the upright brackets to move outwards, thereby completing the adjustment of the stamping forming width, which can meet the stamping forming requirements of raw material plates of different widths.

2. The present invention uses the positioning unit to position the stamping position of the raw material sheet, preventing the raw material sheet from shaking during the press-forming process, resulting in a position shift, which will cause a size shift of the formed cable bridge cover plate, which cannot meet the actual use requirements, so that the raw material sheet can be accurately and stably placed on the punching position of the main support plate, and the positioning adjustment of the raw material sheet of different lengths and sizes can be carried out, which can meet the stamping and positioning requirements of the raw material sheets of different lengths and sizes.

3. The present invention uses the lateral rod to position the stamping position of the raw material sheet. The positioning width spacing can be adjusted according to the width of the raw material sheet, and the punching placement position of the raw material sheet can be precisely positioned, which can meet the positioning requirements of raw material sheets of different widths, and the rounded corners at the upper end of the lateral rod can prevent the surface of the raw material sheet from being scratched. Loading positioning, precise molding size of the cable tray cover ruler.

4. The present invention guides the vertical descending trajectory of the main support plate through the slide bar to prevent deflection, so that the formed outer wall of the cable bridge cover plate ruler maintains a vertical shape, and then pushes the main support plate to rise and reset through the compression spring, so that the stamped and formed cover plate can be easily taken without material jamming.

5. The present invention lowers and presses the raw material plates on the sub-support plate through the L-shaped pressing plate, so that both sides of the raw material plates are in conflict with the inner wall of the upright support, and then both sides of the raw material plate are bent upwards to make the cover plate stamped and formed. The inner wall of the bracket is separated by a material thickness dimension, which can meet the bending and forming requirements of raw material plates with different thicknesses.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of the three-dimensional structure of the main view position of the present invention;

Fig. 2 is a schematic diagram of the three-dimensional structure of the rear view position of the present invention;

Fig. 3 is a partial enlarged view of A place in Fig. 2 of the present invention;

Fig. 4 is a schematic diagram of a partial three-dimensional structure of the present invention;

Fig. 5 is a partial three-dimensional structure sectional view of the present invention;

Fig. 6 is a partial enlarged view of B in Fig. 5 of the present invention;

Fig. 7 is a schematic diagram of the three-dimensional structure of the bending mechanism of the present invention;

Fig. 8 is a schematic diagram of the three-dimensional structure of the material holding mechanism of the present invention;

Fig. 9 is a cross-sectional view of the plane structure of the positioning unit of the present invention;

Fig. 10 is a schematic diagram of the three-dimensional structure of the actuator in the present invention when viewed from the bottom.

In the figure: 1, supporting mechanism; 10, H-shaped bracket; 11, leading screw one; 12, hand wheel one; 13, linkage carriage; 14, sliding rod; 15, compression spring; 16, main supporting plate; 17, positioning unit; 171, T-shaped screw; 172, positioning sleeve; , limit unit; 251, lateral rod; 252, embossed knob; 3, executive mechanism; 30, L-shaped vertical plate frame; 31, executive cylinder; 32, flat carriage; 33, straight rod; 34, screw two; 35, hand wheel two;

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific diagrams. It should be noted that, in the case of no conflict, the embodiments in the application and the features in the embodiments can be combined with each other.

As shown in Figures 1 to 10, a stamping mold for the cover plate of a trough type cable tray includes a supporting mechanism 1, a bending mechanism 2, an actuator 3 and a base plate 4. The actuator 3 is installed on the base plate 4, and a bending mechanism 2 is arranged directly below the actuator 3. The bending mechanism 2 is symmetrically installed on the base plate 4 through a sliding fit. , where:

Referring to Fig. 1, Fig. 3, Fig. 4, Fig. 5 and Fig. 8, described supporting mechanism 1 comprises H-shaped support 10, leading screw 11, hand wheel 12, linkage carriage 13, slide bar 14, compression spring 15, main support plate 16 and positioning unit 17; And the other side shaft end of lead screw 11 is connected with the outer wall of linkage carriage 13 through bearings, linkage carriage 13 is installed on the H-shaped bracket 10 by sliding fit, both ends of described linkage carriage 13 are provided with symmetrically distributed inclined waist holes, the distance between the inclined waist holes gradually decreases from left to right, and the inclined waist holes at the two ends of linkage carriage 13 go in the same direction, so that the bending mechanism 2 can be moved and adjusted synchronously according to the inclined guide track of the inclined waist holes, so as to meet the needs of different widths. and the inclined waist hole on the linkage carriage 13 is connected with the pulley 22 through a sliding fit mode. The H-shaped bracket 10 is provided with a plurality of slide bars 14 linearly arranged along its length direction through a slide fit mode, and the slide bars 14 are located inside the linkage carriage 13. A compression spring 15 is arranged on the outer ring of the slide bar 14. The compression spring 15 is connected between the upper outer ring of the slide bar 14 and the end face of the H-shaped bracket 10. The main supporting plate 16, the main supporting plate 16 is connected with the auxiliary supporting plate 24 through concave-convex matching, and the positioning unit 17 is symmetrically installed on the main supporting plate 16 through a sliding fit; according to the size requirement of the forming width of the cable bridge cover plate, the width spacing of the stamping is adjusted, and the leading screw 11 is rotated by the hand wheel 12, so that the leading screw 11 is rotated to control the sliding translation of the linkage carriage 13 on the H-shaped bracket 10. The hole pushes against the bending mechanism 2, so that the bending mechanism 2 moves outward synchronously according to the deflection guide track of the inclined waist hole, and completes the adjustment of the width and spacing of the stamping forming, and then adjusts the length and spacing of the positioning unit 17 according to the length of the raw material sheet, so that the raw material sheet can be accurately and stably placed on the stamping position of the main support plate 16, and then the actuator 3 is lowered and pushed to push the bending mechanism 2, so that the bending mechanism 2 and the main support plate 16 are synchronously lowered, so that both sides of the raw material plate and the bending mechanism 2 Then the two sides of the raw material plate are bent upwards to make the cover plate stamped and formed, while the slide bar 14 guides the vertical descending track of the main support plate 16 to prevent deflection, and then pushes the main support plate 16 up and resets through the compression spring 15, so that the stamped cover plate can be easily taken without material jamming.

Referring to Fig. 9, described positioning unit 17 comprises T-shaped screw rod 171 and positioning sleeve 172; Described T-shaped screw rod 171 is installed on the main support plate 16 by sliding fit mode, and T-shaped screw rod 171 is provided with positioning sleeve 172 by thread fit mode, and the upper end of described positioning sleeve 172 is spherical setting, is convenient to carry out positioning contact to raw material plate, prevents the surface of raw material plate from being damaged; Contact: according to the size and length of the raw material, adjust the distance between the positioning lengths so that the raw material can be accurately and stably placed on the stamping position of the main support plate 16. By manually rotating the positioning sleeve 172, the positioning sleeve 172 rises along the thread guide track of the T-shaped screw 171, so that the T-shaped screw 171 can freely slide and adjust on the main support plate 16. The thread guide track of 171 descends, and then the bottom wall of the positioning sleeve 172 contacts the end surface of the main support plate 16, while the end surface of the T-shaped screw 171 contacts the inner wall surface of the main support plate 16 to realize positioning self-locking and complete the adjustment of the stamping positioning of the raw material sheet, which can meet the stamping positioning requirements of raw material sheets of different lengths and sizes.

Referring to Fig. 3, Fig. 4, Fig. 5 and Fig. 7, the bending mechanism 2 includes an upright support 20, a long frame 21, a pulley 22, a fixed plate 23, a secondary supporting plate 24 and a limit unit 25; the upright support 20 is mounted on the base plate 4 by a sliding fit, and the edges of the upper end of the upright support 20 inner wall are provided with rounded corners; , and the pulley 22 is connected to the inclined waist hole on the linkage carriage 13 by rolling. A stop plate 23 is arranged on the top of the long frame 21. The stop plate 23 is installed on the inner wall of the upright support 20. An auxiliary support plate 24 is arranged directly above the stop plate 23. The auxiliary support plate 24 is installed on the inner wall of the upright support 20 by a sliding fit. The plates 16 are connected to each other, and the limit unit 25 is installed on the end face of the upright support 20 by sliding fit; according to the size requirement of the forming width of the cable bridge cover plate, the width spacing of the stamping is adjusted, and the pulley 22 is pushed against the inclined waist holes symmetrically distributed at both ends of the linkage carriage 13, so that the pulley 22 is synchronously offset to the outside along the deflection guide track of the inclined waist hole by rolling, which can reduce the frictional resistance during adjustment, and synchronously linkage with the vertical support 20 to translate to the outside, thereby completing the stamping forming width Then according to the width of the raw material plate, adjust the width spacing of the positioning. By moving and adjusting the position of the limit unit 25, the stamping placement position of the raw material plate can be precisely positioned, and can meet the punching positioning requirements of different widths of raw material plates. Bracket connection, then press and push the secondary support plate 24 through the L-shaped pressing plate 36, so that the main support plate 16 and the secondary support plate 24 are lowered synchronously, so that both sides of the raw material plate are in conflict with the inner wall of the upright support 20. Scratches can effectively improve the molding quality of raw material sheets.

Referring to Fig. 6, the limiting unit 25 includes a side position bar 251 and an embossed knob 252; the side position bar 251 is installed on the end face of the upright bracket 20 through a sliding fit, and the upper end face of the side position bar 251 is inclined, which is convenient for guiding the positioning of the raw material sheet, so that the raw material sheet can slide down to the stamping position according to its own weight; The bottom wall of 2 is in contact with the end face of the upright support 20; then according to the width of the raw material plate, the width spacing of the positioning is adjusted, and the side bar 251 can be freely translated and adjusted by manually rotating the embossed knob 252. After the adjustment of the width spacing of the positioning is completed, the embossed knob 252 is manually rotated. Accurate positioning of the punching position can meet the positioning requirements of different widths and sizes of raw material plates, and the rounded corners at the upper end of the side position rod 251 can prevent the surface of the raw material plate from being scratched, and then guide the positioning of the raw material plate through the inclined end surface of the side position rod 251, so that the raw material plate can slide to the stamping position according to its own weight, which facilitates the loading and positioning of the raw material plate.

Referring to Fig. 1, Fig. 2 and the described executive mechanism 3 of Fig. 10 and comprise L-shaped vertical board frame 30, executive cylinder 31, flat carriage 32, straight rod 33, leading screw two 34, hand wheel two 35 and L-shaped pressing plate 36; Slide frame 32 is installed on the L-shaped vertical board frame 30 by sliding fit mode, and the straight rod 33 is installed symmetrically on the inner wall of flat slide frame 32, and lead screw 2 34 is arranged between straight rods 33, and lead screw 2 34 is installed on the inner wall of flat slide frame 32 through bearing, is positioned at the side shaft end of lead screw 2 34 and is equipped with hand wheel 2 35, and lead screw 2 34 is mutually connected with L-shaped pressing plate 36 by screw fit mode, and L-shaped pressing plate 36 is installed on the plate slide symmetrically by sliding fit mode. On the bottom wall of the frame 32; the edge of the lower end of the outer wall of the L-shaped pressure plate 36 is set with rounded corners. According to the size requirements of the forming width of the cable bridge cover plate, the width spacing of the stamping is adjusted, and the screw 2 34 is rotated by the hand wheel 2 35 to make the screw 2 34 rotate. The wall and the inner wall of the upright bracket 20 are spaced by a material thickness dimension, which can meet the bending and forming requirements of raw material plates of different thicknesses. Then, the flat carriage 32 is driven down by the execution cylinder 31, so that the L-shaped pressing plate 36 is lowered to press the raw material plates on the auxiliary support plate 24, and the edges of the lower end of the outer wall of the L-shaped pressing plate 36 are set with rounded corners, which can prevent surface damage caused when the raw material plates are pressed together, and can improve the forming quality of the raw material plates.

In addition, the present invention also provides a stamping method for the cover plate of the trough type cable tray, which specifically includes the following steps:

S1. Preparation of stamping raw material sheet: Use a sheet material shearing device to cut the raw material sheet of the trough cable bridge cover plate, so that the stamped raw material sheet is cut into a specified size to meet the forming requirements of the cover plate;

S2. Positioning and placement: the staff will send the raw material sheet cut into a specified size to the main support plate 16, and the raw material plate can be accurately and stably placed on the stamping position of the main support plate 16 through the positioning unit 17;

S3, pressing down forming: the L-shaped pressing plate 36 descends and presses the sub-supporting plate 24, so that the main supporting plate 16 and the sub-supporting plate 24 are lowered synchronously, and the two sides of the raw material plate on the main supporting plate 16 and the sub-supporting plate 24 are resisted through the inner wall of the upright bracket 20, and then both sides of the raw material plate are bent upwards, so that the cover plate is punched and formed;

S4. Picking up the top material: the actuator 3 is raised, and then the compression spring 15 pushes the main support plate 16 to rise and reset, and the bent and formed cover plate is ejected upward, and the formed size and appearance of the cover plate are inspected by the on-site staff, and the acceptance record is made, and then the cover plate is transported to the designated storage place and waits for subsequent processing.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions in the description only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A trough-type cable bridge cover plate stamping molding die, comprising a material supporting mechanism (1), a bending mechanism (2), an actuator (3) and a base plate (4), characterized in that: the actuator (3) is installed on the base plate (4), and a bending mechanism (2) is arranged directly below the actuator (3), and the bending mechanism (2) is symmetrically installed on the base plate (4) by a sliding fit, and a material supporting mechanism (1) is arranged between the bending mechanisms (2), and a material supporting mechanism ( 1) Installed on the bottom plate (4), and the supporting mechanism (1) is connected to the bending mechanism (2) through a movable connection, wherein: The supporting mechanism (1) comprises an H-shaped support (10), a leading screw (11), a handwheel (12), a linkage carriage (13), a slide bar (14), a compression spring (15), a main supporting plate (16) and a positioning unit (17); Hand wheel one (12) is installed on one side shaft end of screw screw one (11), and the other side shaft end of lead screw one (11) is mutually connected with the outer wall of linkage carriage (13) through bearing, linkage carriage (13) is installed on the H-shaped bracket (10) by sliding fit, and linkage carriage (13) is connected with bending mechanism (2) by sliding fit, H-shaped bracket (10) is provided with a plurality of sliding rods (14) that are linearly arranged along its length direction by sliding fit, and the slider The bar (14) is located inside the linkage carriage (13), and the outer ring of the slide bar (14) is provided with a compression spring (15). The compression spring (15) is connected between the upper outer ring of the slide bar (14) and the end face of the H-shaped bracket (10). The top shaft end of the slide bar (14) is equipped with a main support plate (16). A positioning unit (17) is installed symmetrically in a matching manner; The positioning unit (17) includes a T-shaped screw (171) and a positioning sleeve (172); the T-shaped screw (171) is installed on the main support plate (16) through a sliding fit, and the T-shaped screw (171) is provided with a positioning sleeve (172) through a threaded fit, and the bottom wall of the positioning sleeve (172) is in contact with the end surface of the main support plate (16); The bending mechanism (2) includes an upright support (20), a long frame (21), a pulley (22), a stop plate (23), a secondary support plate (24) and a limiting unit (25); the upright support (20) is installed on the base plate (4) through a sliding fit, and the edges of the upper end of the upright support (20) are provided with rounded corners. A pulley (22) is installed on the frame (21) through a bearing, and the pulley (22) is connected to the material supporting mechanism (1) by rolling, and a stop plate (23) is arranged above the long frame (21), and the stop plate (23) is installed on the inner wall of the upright support (20), and a secondary support plate (24) is arranged directly above the stop plate (23), and the secondary support plate (24) is installed on the inner wall of the upright support (20) by sliding fit On, the secondary supporting plate (24) is provided with a groove, and the secondary supporting plate (24) is connected with the material supporting mechanism (1) through a concave-convex fit, and the limit unit (25) is installed on the end surface of the upright support (20) through a sliding fit; The position limiting unit (25) includes a side position rod (251) and an embossed knob (252); the side position rod (251) is installed on the end surface of the upright bracket (20) through a sliding fit, and the side position rod (251) is symmetrically provided with an embossed knob (252) through a thread fit mode, and the bottom wall of the embossed knob (252) is in contact with the end face of the upright bracket (20); Both ends of the linkage carriage (13) are provided with symmetrically distributed inclined waist holes, the distance between the inclined waist holes gradually decreases from left to right, and the inclined waist holes at both ends of the linkage carriage (13) have the same direction. 2. A trough type cable tray cover plate stamping molding die according to claim 1, characterized in that: the executive mechanism (3) includes an L-shaped vertical frame (30), an executive cylinder (31), a flat carriage (32), a straight rod (33), a lead screw two (34), a hand wheel two (35) and an L-shaped pressing plate (36); the L-shaped vertical frame (30) is installed on the bottom plate (4), and the L-shaped vertical frame (30) Execution cylinder (31) is installed by cylinder base, and the output shaft of execution cylinder (31) is connected with each other by joint joint and flat carriage (32) upper end surface, and flat carriage (32) is installed on the L-shaped vertical board frame (30) by sliding fit mode, and straight rod (33) is installed symmetrically on the inner wall of flat carriage (32), is provided with leading screw two (34) between straight rods (33), and leading screw two (34) is installed on flat carriage (32) by bearing. On the inner wall, be positioned at the side shaft end of leading screw two (34) and handwheel two (35) are installed, and leading screw two (34) are mutually connected with L-shaped pressing plate (36) by screw fit mode, L-shaped pressing plate (36) is symmetrically installed on the bottom wall of flat carriage (32) by sliding fit mode; The edge of described L-shaped pressing plate (36) outer wall lower end is rounded corner setting. 3. A stamping mold for the cover plate of a trough-type cable bridge according to claim 1, characterized in that: the upper end of the positioning sleeve (172) is spherical. 4. A stamping mold for the cover plate of a trough type cable bridge according to claim 1, characterized in that: the upper end surface of the side position bar (251) is inclined. 5. A stamping forming die for a trough cable bridge cover plate according to claim 1, characterized in that: the cable bridge cover plate is stamped by using the above stamping forming die for a trough type cable bridge cover plate, and the specific stamping processing method includes the following steps: S1. Preparation of stamping raw material sheet: Use a sheet material shearing device to cut the raw material sheet of the trough cable bridge cover plate, so that the stamped raw material sheet is cut into a specified size to meet the forming requirements of the cover plate; S2. Positioning and placement: The raw material plates cut into specified sizes are sent to the supporting mechanism (1) by the staff, so that the raw material plates can be positioned and placed; S3. Pressing down forming: the actuator (3) is lowered and the supporting mechanism (1) is pressed together, so that the supporting mechanism (1) and the executing mechanism (3) are lowered synchronously, and the bending mechanism (2) is used to resist the two sides of the raw material plate in the supporting mechanism (1), and then the two sides of the raw material are bent upwards, so that the cover plate is stamped and formed; S4. Lifting material pick-up: through the rising of the actuator (3), the supporting mechanism (1) is raised synchronously, and the bent and formed cover plate is ejected upwards, and the formed size and appearance of the cover plate are checked by the on-site staff, and the acceptance record is made, and then the cover plate is transported to the designated storage place and waits for subsequent processing.